85401640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30071}}^1$

素因数の和:30153

約数の個数: 32

約数和(自身を含む): 194866560

約数和(自身を除く): 109464920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 30071, 60142, 120284, 150355, 240568, 300710, 601420, 1202840, 2135041, 4270082, 8540164, 10675205, 17080328, 21350410, 42700820, 85401640]

約数ペア:

[(1, 85401640), (2, 42700820), (4, 21350410), (5, 17080328), (8, 10675205), (10, 8540164), (20, 4270082), (40, 2135041), (71, 1202840), (142, 601420), (284, 300710), (355, 240568), (568, 150355), (710, 120284), (1420, 60142), (2840, 30071)]